Journal
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
Volume 20, Issue 8, Pages 1409-1413Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2021.3083334
Keywords
Dual-band; linearly polarized; metasurface; polarization conversion ratio
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This letter presents the design and analysis of a dual-band polarization converting metasurface, which exhibits high polarization conversion ratios in two frequency ranges. The mechanism of polarization conversion is studied by examining surface currents for all resonance frequencies.
Design and analysis of a dual-band polarization converting metasurface is presented in this letter. The proposed converter, which consists of two square split ring resonators, exhibits peak resonances at frequencies of 5.6, 7.3, 8.8, 15.1, and 15.9 GHz. The surface behaves as a polarization converter for linearly polarized incident waves in two frequency ranges, i.e., 5.4-9.0 GHz with a polarization conversion ratio (PCR) >= 93%, and 14.6-16.1 GHz with a PCR >= 99%). The size and thickness of the unit cell are, respectively, 0.126 lambda(o) and 0.057 lambda(o), where lambda(o) is the largest wavelength (corresponding to the lower frequency). The mechanism of polarization conversion is studied by examining the surface currents for all the resonance frequencies. Both simulated and experimental results reveals that the polarization converter can be utilized in C-, X- and Ku-band applications.
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